2003 MERCEDES-BENZ CLK430 CABRIOLET battery

285 Electronic key
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Changing batteries in the electronic key
1Transmit buttons
2Lamp for battery check and function control
Checking batteries
If one of the transmit buttons (1) is pressed, the battery
check lamp (2) lights up briefly – indicating that the
batteries are in order.
Change batteries if the battery check lamp (2) does not
light up briefly.Changing batteries
Move locking tab (3) in direction of right arrow and
remove mechanical key (4, left arrow).
P80.20-2201-26
1
2
P80.35-2029-26
4
3

286 Electronic key
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Insert mechanical key (4) in side opening (5) to open
latch. Press briefly (do not use mechanical key as lever)
to release battery compartment.
Remove mechanical key from side opening.
Carefully remove battery compartment in direction of
arrow (6).Change batteries (7), inserting new ones under contact
spring (8) with plus (+) side facing up.
Return battery compartment into housing until locked
in place and slide mechanical key back into electronic
key.
P80.35-2025-26
5
4
6
P80.35-2027-26
78

287 Electronic key
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Important!
Batteries contain materials that can harm the
environment if disposed of improperly. Recycling of
batteries is the preferred method of disposal. For
disposal, please follow manufacturer’s recommendation
on battery package.
Replacement Battery:
Lithium, type CR 2025 or equivalent.Synchronizing remote control
The remote control may have to be resynchronized, if
the vehicle cannot be locked or unlocked.
To synchronize insert electronic key in steering lock.
The remote control should once again be operational.

325 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Defrosting .................................................................... 119
Display and controls ..................................................118
Dust filter ................................................................... 122
Economy ...................................................................... 119
Rear window defroster ............................................. 120
Residual engine heat utilization (REST) ............... 121
Special settings .......................................................... 119
Automatic transmission................................................ 191
Emergency operation ............................................... 199
Fluid level................................................................... 253
Program mode selector switch................................ 198
Selector lever position.............................................. 194
Transmission selector lever,
manually unlocking .................................................. 276
BBabySmart
TM airbag deactivation system..................... 59
Self-test ......................................................................... 59
Backrest, front seat.......................................................... 49
BAS (Brake assist system) ............................................ 212
Malfunction indicator lamp..................................... 227
Battery ............................................................................. 270
Battery recycling ....................................................... 271BATTERY/ALTERNATOR - malfunction and warning
messages ................................................................... 232
Block heater ................................................................... 209
BRAKE ASSIST - malfunction and
warning messages ........................................................ 233
Brake assist system (BAS) ............................................. 212
Malfunction indicator lamp .................................... 227
Brake fluid...................................................... 225, 316, 318
Capacity ...................................................................... 316
BRAKE FLUID - malfunction and
warning messages ........................................................ 234
BRAKE LINING WEAR - malfunction and
warning messages ........................................................ 234
Brake pad wear .............................................................. 234
Brake warning lamp ..................................................... 225
Brake fluid low ......................................................... 225
Brakes .................................................... 200, 202, 212, 216
Bulbs
See Replacing bulbs................................................. 277

329 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex General notes on the central locking system .............. 24
Global locking
See Central locking system ....................................... 27
Glove box ......................................................................... 147
HHazard warning flasher switch ....................................115
Head restraints
Front.............................................................................. 46
Rear ............................................................................... 47
Removal ........................................................................ 46
Headlamp cleaning system ...........................................112
Headlights ........................................................................110
Heated seats...................................................................... 51
High beams
See Combination switch ........................................... 113
Hood ................................................................................. 250IIdentification labels....................................................... 309
Illuminated vanity mirrors ........................................... 146
Indicator lamps in the instrument cluster ................... 80
Individual settings......................................................... 102Infant and child restraint systems ................................ 69
Information call
See Tele Aid ............................................................... 183
Instrument cluster ........................................................... 78
Activating display ....................................................... 81
Indicator lamps............................................................ 80
Instrument lamps ............................................................. 81
Instruments and controls ............................................... 16
Interior
General notes ............................................................. 147
Interior lighting .............................................................. 145
JJump starting .................................................................. 271KKeys, changing battery ................................................. 285
Keys, vehicle .....................................................................22

330 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
LLamps, exterior
Fog lamps ....................................................................110
Headlamp, adjusting ................................................282
Headlamps ..................... 110, 238, 239, 278, 282, 303
Low and high beam .......................................... 113, 279
Parking lamps ...................................................110, 279
Replacing bulbs ......................................................... 277
Side marker lamp, front ........................................... 281
Standing lamps ..................................................110, 279
Taillamp assemblies ......................................... 110, 280
Turn signal lamps ............................................. 113, 279
Layout of poly-V-belt drive ............................................ 310
LIGHT SENSOR - malfunction and
warning messages ......................................................... 239
Lighter ............................................................................. 151
LIGHTING SYSTEM - malfunction and
warning messages ......................................................... 238
Limp home mode (Automatic transmission) ............. 199
Locking and unlocking ................................................... 27
Low beams
See Exterior lamps .................................................... 277
Low engine coolant level warning............................... 236
Luggage cover .................................................................246
MMaintenance ................................................................... 175
Malfunction and indicator lamps in the
instrument cluster ....................................................... 224
Malfunction and warning messages .......................... 230
ABS-SYSTEM ............................................................. 233
BATTERY/ALTERNATOR ......................................... 232
BRAKE ASSIST ......................................................... 233
BRAKE FLUID ........................................................... 234
BRAKE LINING WEAR ............................................ 234
COOLANT (coolant level) ........................................ 236
COOLANT TEMP. (coolant temperature) .............. 237
DISPLAY DEFECTIVE (engine control unit) .........231
DISPLAY DEFECTIVE (several systems) ................231
ELEC. STABIL. PROG. ............................................... 241
ENGINE FAN ............................................................. 235
ENGINE OIL LEVEL ................................................. 240
LIGHT SENSOR ......................................................... 239
LIGHTING SYSTEM .................................................. 238
PARKING BRAKE ..................................................... 235
REMOVE KEY ............................................................ 241
STEER. WHEEL ADJUST. ......................................... 239
TELE AID ................................................................... 243
WASHER FLUID ........................................................ 242
Malfunction/warning message memory .................... 100

332 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
RRadio
See Audio ................................................................... 129
Radio transmitters ......................................................... 174
Rain sensor ......................................................................114
Rear view mirrors
Exterior ......................................................................... 75
Inside ............................................................................ 74
Rear window defroster .................................................. 120
Remote control ................................................................. 25
Battery replacement ................................................. 285
REMOVE KEY - malfunction and
warning messages ......................................................... 241
Replacing bulbs .............................................................. 277
Replacing wiper blade insert ....................................... 296
Reporting Safety Defects ................................................ 14
Residual engine heat utilization (REST) .................... 121
Roadside assistance........................................................... 9
Roadside assistance call
See Tele Aid ............................................................... 182
Roll bar
Switch ........................................................................... 47
Warning lamp ............................................................ 229
Roller blind
Horizontal .................................................................. 170Vertical ........................................................................ 171
SSafety guidelines for the seat belt, emergency
tensioning device and airbag .................................... 67
Seat belts ........................................................................... 53
Fastening ......................................................................55
Seat belt nonusage warning system......................... 54
Unfastening .................................................................. 56
Warning lamp ........................................................... 228
Seat belts and supplemental
restraint system (SRS) .................................................... 52
Seats
Backrest ........................................................................ 49
Front seat adjustment ................................................ 41
Heated ........................................................................... 51
Memory ........................................................................ 43
Multicontour ................................................................ 50
Power seat .................................................................... 41
Selective locking
See Central locking system ....................................... 27
Service indicator
See Flexible service system (FSS) .......................... 105
Setting the audio volume .............................................. 104